*Exporting curves*
->>> export_already_exists = os.path.exists('mycurve.dat')
->>> export_already_exists
-False
->>> h = r.run_lines(h, ['export_block --output mycurve.dat'])
-Success
-<BLANKLINE>
->>> os.path.isfile('mycurve.dat')
-True
->>> if export_already_exists == False:
-... os.remove('mycurve.dat')
+See :file:`export_block.py`.
*Measuring distances and forces*
->>> h = r.run_lines(h, ['delta 300 500']) # doctest: +ELLIPSIS
-[('z piezo (m)', -4.913...e-08), ('deflection (m)', -2.834...e-08)]
-Success
-<BLANKLINE>
+See :file:`delta.py`.
*Worm like chain and freely jointed chain fitting*